<template>
  <div class="login-container">
    <el-form ref="loginForm" :model="loginForm" class="login-form" auto-complete="on" label-position="left">
      <h3 class="title">少年问天-后台管理系统</h3>
      <el-form-item prop="username">
        <span class="svg-container">
          <svg-icon icon-class="user" />
        </span>
        <el-input v-model="loginForm.username" name="username" type="text" auto-complete="on" placeholder="用户名" />
      </el-form-item>
      <el-form-item prop="password">
        <span class="svg-container">
          <svg-icon icon-class="password" />
        </span>
        <el-input
          :type="pwdType"
          v-model="loginForm.password"
          name="password"
          auto-complete="on"
          placeholder="密码"
          @keyup.enter.native="handleLogin" />
        <span class="show-pwd" @click="showPwd">
          <svg-icon v-show="pwdType" icon-class="eye" />
          <svg-icon v-show="!pwdType" icon-class="openEye" />
        </span>
      </el-form-item>
      <el-form-item prop="imageCode">
        <span class="svg-container code-container">
          <svg-icon icon-class="code" />
        </span>
        <el-input
          v-model="loginForm.imageCode"
          name="imageCode"
          class="codeipt"
          type="text"
          placeholder="验证码"
          @keyup.enter.native="handleLogin"
        />
        <div class="codeimg">
          <img v-if="codeSrc" :src="codeSrc+'/code/image'" class="code" alt="" title="点击刷新验证码" @click="changeCodeImg()">
        </div>
      </el-form-item>
      <el-form-item>
        <el-button :loading="loading" type="primary" style="width:100%;" @click.native.prevent="handleLogin">
          登录
        </el-button>
      </el-form-item>
    </el-form>
  </div>
</template>

<script>
import { isvalidUsername } from '@/utils/validate'
import { Message } from 'element-ui'
import config from '@/utils/config'
import { login } from '@/api/login'
import { setToken, getToken, removeToken, setProjectState, getProjectState } from '@/utils/auth'

export default {
  name: 'Login',
  data() {
    const validateUsername = (rule, value, callback) => {
      callback()
    }
    const validatePass = (rule, value, callback) => {
      if (value.length < 5) {
        callback(new Error('密码不能小于5位'))
      } else {
        callback()
      }
    }
    return {
      loginForm: {
        username: '',
        password: '',
        imageCode: ''
      },
      loginRules: {
        username: [{ required: true, trigger: 'blur', validator: validateUsername }],
        password: [{ required: true, trigger: 'blur', validator: validatePass }],
        imageCode: [{ required: true, trigger: 'blur', message: '请输入验证码' }]
      },
      loading: false,
      pwdType: 'password',
      redirect: undefined,
      codeSrc: ''
    }
  },
  watch: {
    $route: {
      handler: function(route) {
        this.redirect = route.query && route.query.redirect
      },
      immediate: true
    }
  },
  mounted() {
    this.codeSrc = config.BaseUrl
    // setToken('token_128127122912102')
    console.log(this.redirect)
    // this.$router.go(0)
    // this.$router.push({ path: this.redirect || '/' })
  },
  methods: {
    showPwd() {
      if (this.pwdType === 'password') {
        this.pwdType = ''
      } else {
        this.pwdType = 'password'
      }
    },
    // handleLogin() {
    //   this.$refs.loginForm.validate(valid => {
    //     if (valid) {
    //       var formdata = new FormData();
    //       formdata.append('username', this.loginForm.username)
    //       formdata.append('password', this.loginForm.password)
    //       formdata.append('imageCode', this.loginForm.imageCode)
    //       this.loading = true
    //       this.$store.dispatch('Login', formdata).then((res) => {
    //         this.loading = false
    //         this.$router.push({ path: this.redirect || '/' })
    //       }).catch(err => {
    //         this.changeCodeImg()
    //         this.loginForm.imageCode = ''
    //         this.loading = false
    //         Message.error(err.message)
    //       })
    //     } else {
    //       return false
    //     }
    //   })
    // },
    handleLogin() {
      this.$refs.loginForm.validate(valid => {
        if (valid) {
          var formdata = new FormData();
          formdata.append('username', this.loginForm.username)
          formdata.append('password', this.loginForm.password)
          formdata.append('imageCode', this.loginForm.imageCode)
          //   const formdata = {
          //     'username': this.loginForm.username,
          //     'password': this.loginForm.password,
          //     'imageCode': this.loginForm.imageCode
          //     // formdata.append('imageCode', this.loginForm.imageCode)
          // }
          this.loading = true
          this.$store.dispatch('Login', formdata).then((res) => {
            this.loading = false
            this.$router.push({ path: this.redirect || '/' })
          }).catch(err => {
            this.changeCodeImg()
            this.loginForm.imageCode = ''
            this.loading = false
            Message.error(err.message)
          })
        } else {
          return false
        }
      })
    },
    changeCodeImg() {
      const changCode = this.codeSrc + '/code/image?num=' + Math.random();
      this.codeSrc = changCode
    }
  }
}
</script>

<style rel="stylesheet/scss" lang="scss">
$bg:#2d3a4b;
$light_gray:#eee;

/* reset element-ui css */
.login-container {
  .el-input {
    display: inline-block;
    height: 47px;
    width: 85%;
    input {
      background: transparent;
      border: 0px;
      -webkit-appearance: none;
      border-radius: 0px;
      padding: 12px 5px 12px 15px;
      color: $light_gray;
      height: 47px;
      &:-webkit-autofill {
        -webkit-box-shadow: 0 0 0px 1000px $bg inset !important;
        -webkit-text-fill-color: #fff !important;
      }
    }
  }
  .el-form-item {
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(0, 0, 0, 0.1);
    border-radius: 5px;
    color: #454545;
  }
}

</style>

<style rel="stylesheet/scss" lang="scss" scoped>
$bg:#2d3a4b;
$dark_gray:#889aa4;
$light_gray:#eee;
.login-container {
  position: fixed;
  height: 100%;
  width: 100%;
  background-color: $bg;
  .login-form {
    position: absolute;
    left: 0;
    right: 0;
    width: 520px;
    max-width: 100%;
    padding: 35px 35px 15px 35px;
    margin: 120px auto;
  }
  .tips {
    font-size: 14px;
    color: #fff;
    margin-bottom: 10px;
    span {
      &:first-of-type {
        margin-right: 16px;
      }
    }
  }
  .code-container{
    svg{
      width: 1.4em;
      height: 1.4em;
    }
  }
  .codeipt{
    width: 60%;
  }
  .codeimg{
    width: 80px;
    position: absolute;
    right: 4px;
    top: 4px;
    bottom: 4px;
    border-radius: 3px;
    overflow: hidden;
    img{
      width: 130%;
      height: 100%;
      position: absolute;
      top: 0;
      left: 0;
      right: -30%;
    }
  }
  .svg-container {
    padding: 6px 5px 6px 15px;
    color: $dark_gray;
    vertical-align: middle;
    width: 30px;
    display: inline-block;
  }
  .title {
    font-size: 26px;
    font-weight: 400;
    color: $light_gray;
    margin: 0px auto 40px auto;
    text-align: center;
    font-weight: bold;
  }
  .show-pwd {
    position: absolute;
    right: 10px;
    top: 7px;
    font-size: 16px;
    color: $dark_gray;
    cursor: pointer;
    user-select: none;
  }
}
  .code {
    cursor: pointer;
  }
</style>
